How to create v4 key

[Robert J. Hansen]

> When I choose a RSA3076 key, keyserver.pgp.com will accept it.
> When i choose an ed25519 key, keyserver.pgp.com tells me it is a v3-key.

keyserver.pgp.com is *old* and doesn't understand how to use ed25519 
keys.  It is erroneously telling you it's a v3 key, when the reality is 
keyserver.pgp.com is in desperate need of upgrades to support new 
algorithm types.